Hot-water and steam boiler.



J. P. SGHAFFBR. HOT WATER AND STEAM BOILER.

APPLIOATION FILED DEO.10, 1912.

Patented May 13, 1913.

2 BHBETSSHEET 1A COLUMBIA PLANUUHAPN C0.. WASHINGTON. D. c.

J. P. SCHAPPBR.

HOT WATER AND STEAM BOILER.

APPLICATION FILED DBO.10, 1912. 1,061,503.

2 SHEETS-SHEET 2.

Patented May 13, 1913.

E11/venan Ll/kn asses:

COLUMBIA PLANOORAMI C0.. wASmNOToN. u C.

lUNlTED STATES PATENT FFICE.

JOHN P. SCHAFFER, OF PITTSBURGH, PENNSYLVANIA.

HOT-WATER AND STEAM BOILER.

Be it known that I, JoHN I. Soifmrrnn, a resident of Pittsburgh, in the county o't' Allegheny and State oft' Pennsylvania, have invented a new and useful Improvement in llot-l/Vater and Steam Boilers; and l do hereby declare the tiollowing to be a it'ull, clear, and exact description thereof.

My invention relates to boilers and has special reference to that class of boilers used in heating water or steam for houses, apartments and other buildings.

The object oit' my invention is to provide z cheap, simple and etticientboiler for such purpose, in which the fuel employed for heating the boilei` can be either tluid it'orm, such as gas or oil, or solid torni, such as coal, coke, etc., and the boiler so arranged or eonstructed. whereby either or both oli such 'toi-ms of t`uel may be used as desired.

To these ends my invention consists. generally stated, in the novel. arrangement, construction and combination ot' parts as hercina'tter more specifically set t'orth and de" scribed and particularly pointed out in the claims.

To enable others skilled in the art to which my invention appertains to construct and use my improved boiler, will describe the same more t'ully. referring to the accom panying drawings, in which z- Figure 'l is a Yliront end view ot my improved boiler. Fig. 2 is a side elevation ot the same. Fig. 3 is an enlarged detail cross section on the line Fig. 2. Fig. 4; is an enlarged cross-section on the line -l---t Fig. 1. Fig. 5 is an enlarged vertical section ot' the boiler on the line .5h-5 Fig. 2. Fig. is an enlarged vertical section ot the boiler on the line 6 6 Fig. Q. Fig. 7 is an enlarged longitudinal central section o't' the boiler. Fig. S is a detail cross-section showing another 'form ot' the invention.

Like symbols of reference herein indicate like parts in each of the figures ot' the drawing.

As illustrated in the drawings my im proved furnace A is ot the ordinary horizoir tal approved type for steam or water, and is composed of the usual series of hollow sec- Specification of Letters Patent.

Application led December 10, 1912.

Patented May 13, 1913. Serial No. 735,981.

tions l to form the body ot' such it'urnace, which sections are set in a vertical line against each other and connected together in any suitable manner. These sections l form the front, intermediate and back sections o'l the furnace A, with the front section carrying the usual cleaning, charging and clinker doors Q, 3 and 4, respectively, and the rear section carrying the usual smoke box and draft check flue tl and 7, respectively, while connected to the sections 1 in any suitable manner is the usual top header 8 and under said sections is the ash-pit section 5 carrying the door 5. The hollow sections l are also so shaped or constructed that they form the comlmstion or Ytucl chamber t), circulating tlues l0, return flue 11 and smoke flue lf2 within the same. while such sections are also contracted intermediate. as at l". oli their outer abutting portions or enlargements l. so that they provide 'lor the tuel circulating chambers 153 around and between the same. ln the ordinary operation ot such furnace, the products ot comlmstion from the fuel, such as coal, coke. etc., on the grate 5 over the ash pit 5 will pass back through the fuel chamber 9 around. within and between the sections l in the tlues 10. thence 'Forward through the side tlues l1 and thence back through the central tluc l. in said sections to thc smoke box G where they can escape into the usual stack or chimney connected thereto, so that such products will have a staggered and return travel by reason ot the arrangements or construction ot said sections.

Extending vertically `within the enlargements forming the abutting portions l on cach ot the sections l is a tubular tlue 15, which leads trom the outwardly extending base flange ttt on said sections and connects `bv an inwardly extending portion l5 at its upper end with a horizontal tlue 17 under the dome or top a o't` the furnace A tiormed b v said sections, and such flue is formed by each of said sections, and connects with the smoke box (i. rlhc vertical tlucs l5 are preferably tapered inwardly toward the top ot' the same where they connect with the inwardly extending portion 15 on each of the same, and a fuel supply pipe 18 leads into the bottom of each of said flues from a common supply pipe 19 extending along each side of the furnace A, and such pipes 18 are each provided with the usual mixer 19 within each of the same. I suitable packing 2O is placed around each of the pipes 18 and within the llues 15 to close the openings between such pipes and flues and a perforated burner 21 is connected in any suitable manner to the top of each of said pipes, having in line with the same a sighter or igniter opening 22 which is formed by a pipe 23 extending through the side walls o of the furnace A into the flues 15 and closed by the usual door 2st at its outer end.

`When my improved furnace A is to be operated the water for the generation of steam or to be heated for use enters each of the hollow sections 1 in the usual manner from the side header 25 through the nipples 26 so that the steam so generated or heated water passes from the furnace through the top header 8 into the pipe 27 connected to said header and thence to the different rooms to be heated by the usual pipes, not shown, connected to said pipe, while the circulation of the return steam or heated water is made in the usual manner to said furnace. The water in such sections 1 is heated by the products of combustion around and through said sections when fuel is used in the grate 5 in t-he manner hereinbefore described.

When it is desired to use gas as a fuel, the gas enters the vertical flues 15 from the supply pipe 19 through the pipes 18, and on being lighted at the burners 21 through the openings 22, the flames and products of combustion from such gas will pass up through said flues, thence into the horizontal flue 17, and thence into and through the smoke box 6 to the chimney or stack, so that the water in the hollow interior 1a of said sections 1 and surrounding both of such flues will be heated thereby and the steam generated therefrom or heated water will be passed to the different rooms to be heated, as hereinbefore described. A

In Fig. 8 my improved boiler is shown of the vertical type, and of substantially circular shape in which the hollow sect-ions forming the furnace body are placed one upon the other and each provided with an extension 25 on each side to form an enlargement at the sides of the furnace for the reception of the vertical flues 15 connect-- ing with the fluid supply for the fuel to the same and within the water of said body. ln this case the fuel chamber 9l is in the center of the furnace, as many flues as desired can be placed in such furnace, while various other modilications and changes in the design and construction of my improved furnace may be resorted to without departing from the spirit of the invention or sacrificing any of its advantages.

1t will thus be seen that my improved furnace can be used with gas or other fluid as a fuel, or coal, coke or other solid fuel can be used and either or both in different parts of the furnace, and as desired, while the fluid connect-ions are protected from injury when the solid fuel is used. The change from solid to fluid fuel, or vice versa, can be made at any time when desired by any unskilled person without. change, addition or removal of parts, and no inconveni-ence will be caused by the use of such furnace. Then either solid or fluid fuel, or both, are used in the furnace they will not in any way interfere with each other either in their construction or operat-ion, and when the fluid fuel is used the furnace will be capable of great water heating power by reason of the fluid heating devices being located directly in the furnace and within the water to be heated.

Nhat l claim as my invention and desire to secure by Letters-Patent is:-

1. ln a boiler for heating water, the combination with the hollow boiler body for the water and having the fuel chamber therein, of a vertical tubular flue within the hollow sides of said body and within the water therein, a horizontal flue in the upper portion of said body connecting said vertical flue at its upper end with the smoke box, and a fluid supply pipe connected to said vertical flue for supplying fuel to the same to heat the water'in said body.

2. 1n a boiler for heating water, the combination with the hollow boiler body for the water and having the fuel chamber therein, of a vertical tubular flue within the hollow sides of said body and within the water therein, a horizontal llue in the upper portion of said body connecting said vertical flue at its upper end with the smoke box, a fluid supply pipe connected to said vertical flue for supplying fuel to the same to heat the water in said body, and a burner within said vertical flue and above said pipe.

8. ln a boiler for heating water, the combination with the hollow boil-er body for the water and having the fuel chamber therein, of a vertical tubular llue within the hollow sides of said body and within the water therein, a horizontal flue in the upper portion of said body and connected to said vertical flue by an inwardly extending portion on said vertical flue, and a fluid supply pipe connected to said vertical flue for supplying fuel to the same to heat the water in said body.

4. 1n a boiler for heating water, the combination with the hollow boiler body for the water and having the fuel chamber therein,

Cit

of a vertical tubular flue within the hollow sides of said body and within the water therein, a horizontal flue in the upper portion of said body and eoni'ieeted to said vertical flue by an inwardly extending portion on said vertical flue, a tluid supply pipe connected to said `vertical flue for supplyingl fuel to the saine to heat the water in said body, and a burner within said vertical flue and above said pipe.

5. In a boiler for heating water, the eo1nbination with the boiler body formed of a series of hollow sections adapted to contain water and formino; a fuel chaiiiber therein, of a vertical tubular flue within the hollow sides of eaeli of said sections and within the water therein. and a 'tliiid supply pipe eonneeted to each of said thies for supplying' fuel to the saine to heat the water in said body.

6. In a boiler for heating water, the eoiiibination with the boiler body formed of a series of hollow sections adapted to contain water and forming a fuel ehainber therein, of a vertical tubular flue within the hollow sides of each of said sections and within the water therein, a fluid supply pipe connected to each of said tliies for supplying fuel to the saine to heat the water in said body, and a burner within each of said tlues and above its supply pipe.

7. ln a boiler for heatingl water, the eoinbination with the boiler body forni-ed of a series of hollow sections adapted to eontain water and forining a fuel ehaniber therein, of a vertical tubular tliie within the hollow sides of each of said sections and within the water therein, a horizontal tlue in the `upper portion of said sections eoiineetingsaid vertieal flue at its upper end with the sniolie box, and a tliiid supply pipe connected to each of said vertical fines for supplying fuel to the sain-e to heat the water iii said body.

8. ln a boiler for heat-ing' water, the eenibination with the boiler body fornied of a, series of hollow sections adapted to eoiitain water and forming a fuel eliaiuber therein, of a vertical tubular ltliie within the hollow sides of each of Said seetions and within the wa ter therein, a horizontal tlue in the upper portion of said sections Connecting' said \'eitieal flue at its ripper end with the sniolfe box, a tliiid supply pipe Connected to eaeli of said vertical fines for supplying fuel to the saine to heat the water in said body, and a burner within each of said vertieal tliies and above the supply pipe.

9. In a boiler for heating;` water, the eoiiii bination with the boiler body -forn'ied of a Series of hollow seetions adapted to Contain water and forming a fuel eliainber therein, of a vertical tubular tliie within the hollow sides of each of said sections and within the, Water therein, a horizontal flue in the upper portion of said sections and connected to said vertical tlue by an inwardly extending portion ou said vertical tliie, and :i 'tliiid supply pipe eoiineeted to said vertical tlue for supplying' fuel to the saine to heat the water in said body.

1t). ln a boiler for heating water, the eoiiibination with the boiler body foi-ined of a series of hollow seetioiis adapted to eontain water and forming' a fuel ehiiinber therein, of a vertieal tubular Hue within the hollow sides of eaeh, of said .sections and within the water therein, a horizontal flue in the upper portion of said sections and connected to said vertical tliie by an inwardly extending portion on said verticaal tliie, a. fluid supply pipe connected to said vertieal tliie for supplying fuel to the saine to heat the water in said body, and a burner within eaeh of said vertical tliies and above its supply pipe.

11. l'ii a boiler for heating water, the eenibiiiation with the hollow boiler body and forming the fuel eliaiiiber therein, of a vertieal tubular tliie within the hollow sides of said` body and within the water therein, said tlue being inwardly tapered towai'd its upper end, and a tliiiil supply pipe connected to said tlue for supplyingl fuel to the saine to heat the water in said body.

t2. ln a boiler for heatiine` water. the eonibinatioii with the hollow boiler body for the f water and foriiiingi the fuel ehaniber therein, of a vertical tubular tliie within the hollow sides of said body and within the water therein, said tliie being in\\'ardly tapered toward its upper end, a tliiid supply pipe iconneeted to said flue for supplying fuel to the saine to heat the water iii said body, and a burner within said flue anil above said pipe.

13. ln a boiler for heating water, the eoinbination with the hollow boiler body for the water and toriiiiiigr the fuel elianiber therein, of a Vertical tubular [lue within the hollow sides of said body and within the water therein, said tliie beine inwardly tapered to ward its upper end, a horizontal tliie in the upper portion of said body eoniiei'tiiigil said rertieal thie at; its upper end with the sinoke box, and a tliiid supply pipe eonneeted to said vertical flue for supplying fuel to the saine to heat the water in said body.

let. ln a boiler for heat ing water, the eoinbination with the hollow boiler body for the water and forming` the fuel eliainber therein, of a Vertical tubular tlne within the hollow sides of said body and within the water therein, said flue being inwardly tapered to ward its upper end, a horizontal [hie in the upper portion of said body eonneeting said vei'tiial flue at its` upper end with the siiiolte box, a fluid supply pipe eoniieeted to said vertieal :tlne for supplying' fuel to the saine to heat the water in said body, and ii burner within said vertical flue and above said pipe.

15. In a boiler for heating water, the coinbination with the hollow boiler body for the water and forming the fuel chamber therein, of a vertical tubular flue within the hollow sides of said body and within the water therein, said flue being inwardly tapered toward its upper end, a horizontal flue in the upper portion of said body and connected to said vertical flue by an inwardly extending portion on said vertical flue, and a fluid supply pipe connected to said vertical flue for supplying fuel to the same to heat the water in said body,

16. In a boiler for heating water, the combination with the hollow boiler body for the water and forming the fuel chamber therein, of a vertical tubular flue within the hollow sides of said body and within the water therein, said flue being inwardly tapered toward its upper end, a horizontal flue in the upper portion of said body and connected I to said vertical flue by an inwardly extending portion on said vertical flue, a fluid supply pipe connected to said vertical flue for supplying fuel to the same to heat the water in said body, and a burner within said vertical flue and above said pipe.

17. In a boiler for heating water, the combination with the boiler body formed of a series of hollow sections adapted to contain water and forming a fuel chamber therein, of a vertical tubular fiue within the hollow sides of each of said sections and within the water therein, said flues being inwardly tapered toward their upper ends, and a fluid supply pipe connected to each of said flues for supplying fuel to the same to heat the water in said body.

18. In a boiler for heating water, the combination with the boiler body formed of a series of hollow sections adapted to contain water and forming a fuel chamber therein, of a vertical tubular flue within the hollow sides of each of said sections and within the water therein, said flues being inwardly tapered toward their upper ends, a iiuid supply pipe connected to each of said fiues for supplying fuel to the same to heat the water in said body, and a burner within each of said flues and above its supply pipe.

19. In a boiler for heating water, the combination with the boiler body formed of a series of hollow sections adapted to contain water and forming a' fuel chamber therein, of a vertical tubular iue within the hollow sides of each of said sections and within the water therein, said fiues being inwardly tapered toward their upper ends, a horizontal flue in the upper portion of said sections vconnecting said vertical flue at its upper end with the smoke box, anda fluid supply pipe connected to each of said vertical flues for supplying fuel to the saine to heat the water in said body.

20. In a boiler for heating water, the

combination with the boiler body formed of a series of hollow sections adapted to contain water and forming a fuel chamber therein, of a vertical tubular flue and within the hollow sides of each of said sections and within the water therein, said flues being inwardlyvtapered toward their upper ends, a horizontal flue in the upper portion of said sections connecting said vertical flue at its upper end with the smoke box, a fluid supply pipe connected to each of said Vertical flues for supplying fuel to the same to heat the water in said body, and a burner within each of said vertical flues and above the supply pipe.

21. In a boiler for heating` water, the combination with the boiler body formed of a series of hollow sections adapted to contain water and forming a fuel chamber therein, of a vertical tubular flue within the hollow sides of each of said sections and within the water therein, said flues being inwardly tapered toward their upper ends, a horizontal flue in the upper portion of said sections and connected to said vertical flue by an inwardly extending` portion on said vertical fiue, and a fluid supply pipe connected to each of said vertical flues for sup- ,plying fuel to the same to heat the water in said body'.

QQ.. In a boiler for heating water, the combination with the boiler body formed of a series of hollow sections adapted to contain water and forming a fuel chamber therein, of a vertical tubular flue within the hollow sides of each of said sections and within the water therein, said flues being inwardly tapered toward their upper ends, a horizontal flue in the upper portion of said sections and connected to said vertical flue by an inwardly extending portion on said vertical flue, a vHuid supply pipe connected to each of said vertical flues for supplying fuel to the same to heat the water in said body, and a burner within each of said vertical flues and above its supply pipe.

28. In a boiler for hea-ting water, the combination with the boiler body formed of a series of hollow sections adapted to contain water and forming a fuel chamber therein, of a vertical tubular fine within the hollow sides of each of said sections and within the water therein, and means for supplying fuel to'said flues to heat the water in said body.

24C. In a boiler for heating water, the combination with the hollow boiler body and Jforming the fuel chamber therein, of a vertical tubular flue within the hollow sides of said body and within the water therein, said fiue being inwardly tapered toward its upper end, and means for supplying fuel to the said flues to heat the water in said body. 25. In a boiler for heating water, the comL bination with the boiler body formed of a series of hollow sections adapted to contain 'Water and forming a fuel chamber therein, In testimony whereof, I the said JOHN P. ofla vertical tlflbulzu' Hue Within the hollow Solmwnn have hereunto set my hand.

Sic es of each o sacl sections and Within the w 1 Water therein, said lues being inwardly JOHN P' SCHADLEI" tapered toward their upper enfle, und means lVtnesses: for supplying fuel to the Said fines to heat T. B. HUMIHRIES, the Water is said loocly. J. l/V. MAYFIELD.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, 1D. C. 

